Conversion formula

The conversion factor from gallons to cups is 16, which means that 1 gallon is equal to 16 cups:

1 gal = 16 cup

To convert 100 gallons into cups we have to multiply 100 by the conversion factor in order to get the volume amount from gallons to cups. We can also form a simple proportion to calculate the result:

1 gal → 16 cup

100 gal → V_(cup)

Solve the above proportion to obtain the volume V in cups:

V_(cup) = 100 gal × 16 cup

V_(cup) = 1600 cup

The final result is:

100 gal → 1600 cup

We conclude that 100 gallons is equivalent to 1600 cups:

100 gallons = 1600 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.000625 × 100 gallons.

Another way is saying that 100 gallons is equal to 1 ÷ 0.000625 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one hundred gallons is approximately one thousand six hundred cups:

100 gal ≅ 1600 cup

An alternative is also that one cup is approximately zero point zero zero one times one hundred gallons.

Conversion table

gallons to cups chart

For quick reference purposes, below is the conversion table you can use to convert from gallons to cups